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Finding the Fourth Proportional to 428,925.44, 591,529.80 and 267,795.44

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Solution

The fourth proportional to 428,925.44, 591,529.80 and 267,795.44 is: 369,315.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,925.44 : 591,529.80 = 267,795.44 : x
  2. Step 2: Convert to fraction form
    428,925.44/591,529.80 = 267,795.44/x
  3. Step 3: Cross multiply
    428,925.44x = 591,529.80 × 267,795.44
  4. Step 4: Simplify right side
    428,925.44x = 158,408,983,064.11
  5. Step 5: Solve for x
    x = 158,408,983,064.11/428,925.44
  6. Step 6: Final answer
    x = 369,315.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.